Todd Engineers: Edwin H. Lin

Expertise:

Mr. Lin has over 10 years of experience in groundwater basin management, including basin conceptual model development, water supply exploration, and managed aquifer recharge (MAR) evaluation. Edwin has been responsible for the design and construction of municipal water supply and monitoring wells, design and analysis of aquifer pumping tests, field investigation design for MAR projects, and quantification of impacts to groundwater quantity and quality from proposed large-scale developments.

In addition to hands-on field experience, He is skilled in Geographical Information Systems (GIS) database development, groundwater flow and vadose zone modeling, geochemical analysis, and application of advanced environmental statistics.

Recent projects for which Edwin held key responsibilities include a year-long study (link to project description) for the Santa Clara Valley Water District that evaluated the sensitivity and vulnerability of groundwater to potentially contaminating land uses using logistic regression modeling. Findings have been incorporated in a web-enabled GIS tool for land use planning purposes. In addition, Edwin has completed a study using intrinsic tracers and innovative geochemical plotting techniques to track and evaluate the impacts of recycled water injection on seawater intrusion in the West Coast Basin in Southern California. He also recently revised the monitoring and reporting program for a private landfill in southern California, which included application of non-parametric statistical methods to address complex site hydrogeologic and groundwater quality conditions while satisfying federal and states monitoring performance standards.

Edwin has published papers in cooperation with the Australian Commonwealth Scientific and Industrial Research Organisation (CSIRO) on the assessment of physical clogging and pre- treatment options prior to Aquifer Storage and Recovery.

Academic Background and Professional Credentials:

Professional Geologist California, No. 8312
Certified Hydrogeologist California, No. 907

MS, Groundwater Hydrology, Flinders University, Australia, 2006
BS, Geological and Environmental Sciences, Stanford University, 1998